On 5/7/2016 2:18 PM, Viktor Dukhovni wrote: > >> On May 7, 2016, at 8:31 AM, Wietse Venema <wie...@porcupine.org> wrote: >> >>> What I'm currently trying to get working is a service entry in master.cf >>> that has its own header checks conf file. This service would only be >>> used for specific sender addresses in order to limit the header removal >>> to just those email notifications generated by Google Calendar. >> >> Postfix can't do this on the receiving end, but you can do it on the >> delivering end. > > Well, Postfix can do this on the sending end via: > > main.cf: > # Resolve sieve auto-forwarder sender address to "autosieve" transport > sender_dependent_default_transport_maps = ... > autosieve_header_checks = pcre:${config_directory}/autosieve.pcre > > master.cf: > autosieve unix ... smtp > -o smtp_header_checks=$autosieve_header_checks > > autosieve.pcre: > /^Auto-Submitted:/ IGNORE > > > http://www.postfix.org/postconf.5.html#sender_dependent_default_transport_maps > > http://www.postfix.org/postconf.5.html#empty_address_default_transport_maps_lookup_key > http://www.postfix.org/postconf.5.html#smtp_header_checks > > Log inspection will reveal what envelope sender address sieve notices > are sent by. > > However, dropping "Auto-Submitted:" headers rather risks mail loops > and need to be done with great care, if at all. The OP needs to > be quite sure that he's not generating an email in response to email > that is a response to a previously generated email ... > > So, in general don't do this. In specific cases, only after careful > analysis of the resulting mail flow making sure that the Sieve rule > can never fire in response to any message that might come back as > a result of the generated and no longer manifestly "Auto-Submitted" > notice. > > Read RFC 3834 with care. >
Hi Viktor, Thank you for the detailed reply. Would the following be correct? # master.cf (two lines) autosieve unix - - - - - smtp -o smtp_header_checks=$autosieve_header_checks # main.cf (two lines) sender_dependent_default_transport_maps = hash:${config_directory}/sender_dependent_default_transport_maps.conf autosieve_header_checks = pcre:${config_directory}/autosieve.pcre # sender_dependent_default_transport_maps.conf # # This entry is matching against gmail.com because Google Calendar # delivers notifications to your associated Gmail account. To # receive them on your outside email account you have to configure # Gmail to forward email. When it does, the Calendar notification # appears to end up with an envelope sender address of your # Gmail account. For testing purposes, I am attempting to just # match on ALL Gmail accounts. @gmail.com autosieve After not getting any results, I went back an added a test Gmail account and sent from there to my primary account. No entries in the mail log any different from a standard delivery. I went back and modified the master.cf entry like so: # master.cf (three lines) autosieve unix - - - - - smtp -o syslog_name=postfix/autosieve -o smtp_header_checks=$autosieve_header_checks At this point I suspect I missed something obvious. I have the postconf -n and postconf -Mf output ready to post if you don't spot my mistake above. Thanks for your help.